The length of a rectangle is 10 times its width. If the area of the rectangle is 52 yd2, find its approximate width.

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

The sum of two numbers is 12 and their difference is 18 what are the two numbers

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?